Hands in pockets, President Richard Nixon strolls across a bridge in a typical Chinese setting in Hangchow, China, with Chinese Premier Chou En-Lai. Nixon's eight-day visit to Beijing - filled with official meetings, sightseeing and cultural events - was the first ever tour to the Asian country by a U.S. president. The visit signaled a significant change in U.S. policy toward China - moving from a closed-door, anti-communist confrontation to a discussion of trade and cultural exchanges.